Improvement in storing petroleum



UNITED' STATES' PATENT GFI-uca.

EMMETT QUINNOF WASHINGTON, DISTRICT OF COLUMBIA.

IMPROVEMENTl IN STORING PETROLEUM, 84C.

Specification forming part of Letters Patent No. 58,4175, dated October 2, 1866.

To all whom it may concern:

Be it known that I, EMMETT QU1NN,ot` Washington, District of Columbia, have invented a newand lfm proved Device for Storing Pe troleu m and other Oils and I do hereby declare the following to be a full and exact description thereof,

reference being` had to the accompanyingd rawings, and to the letters of reference marked thereon.

This device is intended to be moored in a dock, alongside a wharf or pier, or between boats or scows; and it consists of a platform or raft, hollon7 or solid, and depending on `the speciic gravity of its material for buoyancy. On this yplatform is built a frame or crib, having as many openings as are necessary on one or more sides, extending from the bottom to the top, and which are closed, as the'cargo tills in and sinks, by means of movable bars or slats. The freight or cargo, being ot nearly the same specific gravity as water, will require but little adjustment to maintain the proper level of the crib and cargo, and this is readily accomplished by increasing or diminishing the weight ot the counter-balances provided for that purpose, or by means of capstan or windlass. When loading' or unloading, the top course of barrels is kept above water a convenient distance. At other times the whole V cargo is submerged, an old chain cable or other weight being laid on top ot' the last courses.v

, ent method of storage, besides being the principal source of danger in case of tire. t

A represents the floating platform, supporting the framing or crib B, and held in place by boats or scows C, or by being alongside of a whart',.whose top maybe represented by the red line a: x.

The dotted lines D D at each end ot' the crib represent the planks connecting the boats.

E E represent weights connected to the platform at e, by means of the chain or wire rope Z, passing over the pulley c, supported by the stud or post a on the inside ot the boat. These weights are cast-iron boxes, and by increasing` or diminishing their contents, the crib and platform, with its cargo, is raised or lowered. F F F &c. represent the cargo, the upper layer heilig beneath the level of the water yy.

The red dotted circles F F represent the position of the top course relative to the water` level when loading or unloading the cargo.

The advantages of this mode of storing oil are obvious. It is perfectly safe from tire, instead ot' being the main cause of lire, as in other methods of storing.v It is economical, as it tends to prevent and saves what little there may be of leakage. No evaporation and, consequentl y, no accumulation of explosive gases. The barrels will be kept clean, and are, therefore, less liable to accidentt'rom lire in transportation after having been so stored, and are more easily handled; and lastly, can be made to occupy less valuable room than when on wharf or pier or in a warehouse.

Having thus `described my invention, what I claim as new, and desire to secure by Letters Patent, is

A dock or crib, with its appuitenances, in which to store petroleum or other oils in barrels or casks, constructed and used in a man-` ner substantially as described.

EMMETT QUINN. Witnesses:

Guns. L. CooMBs, A. P. THAYER. 

